Message collector TLS 1.3 support for rsyslog

Hi - We have a requirement to use TLS 1.3 for syslog on a message collector.  Is there a way to verify TLS 1.3 is supported?   

I have configured TLS on a OL7 message collector using this document https://docs.sciencelogic.com/pdf/sciencelogic_sysadmin_12-1-0.pdf and can verify TLS 1.2 is working.  TLS 1.3 is not working on a OL7 collector. 

Thanks